谢谢大家，在这里我修改了帖子。我通过为每个任务使用不同的组件，为陷阱过滤器编写了一个简单的代码VHDL。以下是示例代码，其中使用了不同的组件，除累加器组件（acc1）之外，所有其他组件均工作正常，输出信号保持为零。在acc1一个组件中，我试图制造两个累加器，其中第一个acc1（第一个累加器的输出）是acc2的输入。由于其他组件正在工作，因此在这里，我仅在测试台架的代码中显示了acc1组件的端口映射。
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use IEEE.std_logic_unsigned.all;
use ieee.fixed_pkg.all;
ENTITY TRAPFILTER IS
GENERIC (
K : integer :=80;
L : integer :=200
--M : signed(9 downto 0) := to_signed(5)
);
PORT
(
CLK : IN STD_LOGIC;
RST : IN STD_LOGIC;
DATAIN : IN STD_LOGIC_VECTOR(13 DOWNTO 0);
DATAOUT : OUT STD_LOGIC_VECTOR(24 DOWNTO 0);
DATAOUT1 : OUT STD_LOGIC_VECTOR(25 DOWNTO 0); ---
READY : OUT STD_LOGIC;
Soutout : out std_logic_vector(23 downto 0);
Koutout : out std_logic_vector(13 downto 0);
Loutout : out std_logic_vector(13 downto 0)
);
END ENTITY TRAPFILTER;
ARCHITECTURE RTL OF TRAPFILTER IS
constant M : sfixed(1 downto -2) := to_sfixed(0.01,1,-2);
type Sdelay_reg is array(0 to 2) OF signed(21 downto 0);
signal S_reg : Sdelay_reg :=(others=>(others=>'0'));
-------------------------------------------------------------
signal y_reg0 : signed (27 downto 0) :=(others=>'0');
signal y_reg1 : signed (31 downto 0) :=(others=>'0');
-----------------------------------------------------------
signal in_reg : signed(13 downto 0) :=(others=>'0');
signal out_reg : signed(DATAOUT'length-1 downto 0) :=
(others=>'0');
-- ----------------------------------------------------------
signal fs : std_logic :='0';
--------------------kdelay component----------------------------------
component kdelay is
GENERIC (
K : integer :=80;
L : integer :=200
);
port
(
clk : in std_logic ;
rst : in std_logic;
din : in STD_LOGIC_VECTOR (13 downto 0);
kout : OUT STD_LOGIC_VECTOR (13 downto 0)
);
end component;
signal kout : std_logic_vector (13 downto 0) :=(others=>
'0');
--------------------Ldelay component----------------------
------------
component Ldelay is
GENERIC (
K : integer :=80;
L : integer :=200
);
port
(
clk : in std_logic ;
rst : in std_logic;
din : in STD_LOGIC_VECTOR (13 downto
0);
Lout : OUT STD_LOGIC_VECTOR (13 downto
0)
);
end component;
signal Lout : std_logic_vector (13 downto 0) :=
(others=>'0');
---------------------------------------------------
component sub_mult is
port(
clk : in std_logic ;
rst : in std_logic;
din : in STD_LOGIC_VECTOR (13 downto
0);
Sout : out STD_LOGIC_VECTOR (23
downto 0)
);
end component;
signal Sout : std_logic_vector (23
downto 0) :=(others=>'0');
-------------------------------------------
component accum1 is
port(
clk : in std_logic ;
rst : in std_logic;
din : in
STD_LOGIC_VECTOR (23 downto 0);
Acout : out
STD_LOGIC_VECTOR (24 downto 0);
Acout1 : out
STD_LOGIC_VECTOR (25 downto 0)
);
end component;
signal acc_out1 : std_logic_vector (24 downto 0) :=(others=>'0');
signal acc_out2 : std_logic_vector (25 downto 0) :=(others=>'0');
----------------------------------------------------------------
BEGIN
Koutout <= Kout;
Loutout <= Lout;
Soutout <= Sout;
in_reg <= signed (DATAIN);
DATAOUT <= acc_out1;--std_logic_vector(out_reg);
DATAOUT1 <= acc_out2;
utacc1:component accum1
port map(
clk => clk,
rst => rst,--: in std_logic;
din => Sout, --: OUT STD_LOGIC_VECTOR
(13 downto 0);
Acout => acc_out1, -- : out STD_LOGIC_VECTOR (24 downto 0)
Acout1 => acc_out2
);
END RTL;
------------------------Accum1 component----------------------------------
library IEEEieee;`
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use IEEE.std_logic_unsigned.all;
use ieee.fixed_pkg.all;
entity accum1 is port(
clk : in std_logic ;
rst : in std_logic;
din : in STD_LOGIC_VECTOR (23 downto 0);
Acout : out STD_LOGIC_VECTOR (24 downto 0);
Acout1 : out STD_LOGIC_VECTOR (25 downto 0)
);
end entity;
architecture rtl of accum1 is
signal dout : signed(24 downto 0) :=(others=>'0');
signal datain : signed(23 downto 0) :=(others=>'0');
signal dout2 : signed(25 downto 0) :=(others=>'0');
begin
datain <= signed(din);
process(clk,rst,datain)
variable cm : signed(24 downto 0);
begin
if(rst='1' ) then
dout <= (others=>'0');
dout2 <= (others=>'0');
cm := (others=>'0');
elsif(rising_edge(clk) and clk'event) then
cm := datain + cm;
dout <= cm ;
dout2 <= dout2 + cm ;
end if;
end process;
Acout <= std_logic_vector(dout);
Acout1 <= std_logic_vector(dout2) ;
end rtl;
------------------------test bench only trapfilter comppnent portmapping
uttrap5:component TRAPFILTER
PORT MAP
(
CLK => TestClk, -- : IN STD_LOGIC;
RST => i_rstb, -- : IN STD_LOGIC;
DATAIN => odata, --odata, -- : IN STD_LOGIC_VECTOR(13 DOWNTO 0);
DATAOUT => trap_out, --: OUT STD_LOGIC_VECTOR(13 DOWNTO 0); ---
DATAOUT1 => trap_out1,
READY => trap_ready, --: OUT STD_LOGIC
Koutout => Koutout, --out std_logic_vector(23 downto 0);
Loutout => loutout, --: out std_logic_vector(13 downto 0);
Soutout => Soutout
);
答案 0 :(得分：-1)
您的代码中有几个问题
datain。rising_edge时，您不需要event cm不会保留其值。改用signal或仅使用dout的值。dout2逻辑是什么？